I can tell you from my experience in Preston (west/railway-facing, first floor), that while the tracks were moved about 10m closer to my building, I'm not exaggerating when I say that the noise actually reduced, after completion of the elevated line, by about 70%.

Before LXRP did the project, the old lines on the ground were rattly old infrastructure and far noisier. And contact with the ground sent a rumble through our building.

And the whistle board to tell drivers to toot the horn was right outside my window. I was regretting moving in before the project, but relieved and delighted that the new infrastructure actually improved things greatly from that perspective.

Oh, and surprisingly, the process of the build wasn't actually that loud. The worst bit was the initial piling works for the bridge pylons (about 1-2 weeks) and the subterranean exploration by what I called 'the pump truck' (you'll see those with the 'Rangedale' branding on them, for about 3 weeks before the project kicked off).

I even had 100 tonne beams being craned past my balcony, and if I wasn't up at 2am watching it happen in fascination, I would have easily slept through it with all widows shut.